A criminal defence lawyer believes the quashing of David Tamihere's convictions unveils major errors.
The Supreme Court's scrapped his double murder convictions for killing two Swedish tourists in the 80s.
He served two decades before being released on parole in 2010 and made multiple attempts to clear his name.
The last saw the Court of Appeal confirming a miscarriage of justice took place, but it upheld the convictions.
Nigel Hampton KC told Mike Hosking many fundamental things were wrong with the trial going back over 30 years, from a lying jailhouse witness to other shaky evidence.
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The Mike Hosking Breakfast